Liberal Left is an organised political faction within the British Liberal Democrats which opposed the party's participation in the 2010–2015 coalition with the Conservative Party.

The establishment of "Liberal Left" was announced in February 2012. According to the organisation's head, Linda Jack, the Liberal Left faction was created as an internal pressure group for the influence of government policy.

Writing in The Guardian, Jack stated that

"We are seeking to organise opinion that is currently angry but uncoordinated, and unable to make its voice heard as strongly as is necessary.

"We see ourselves as a pressure group that shares the objectives of the majority of our party, but believes we need to go further in two areas. The first of these is challenging the leadership position on economic and fiscal policy. The second is building good relations across the left between Liberal Democrats, Labour, the Greens and the non-party liberal left."

Jack noted that the Liberal Left faction emerged due to dismay of Liberal Democrat activists "at just how far our leadership seems to have snuggled up, particularly on policies that fly in the face of our manifesto and our values."

In its founding statement, the Liberal Left upbraided Liberal Democrats party leader Nick Clegg for shifting the party to the right and making it "part of a Government which is Eurosceptic, neoliberal and socially conservative." The statement further called for "overt and public dialogue" between the Liberal Democrats, Labour, Greens, and non-party individuals of the left.

Liberal Left has been identified by Liberal Democratic politician Gareth Epps as being centred on party activists close to the progressive pressure group Compass, a coalition based in the Labour Party but also containing members affiliated with the Liberal Democrats and Greens.